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[diderot] Annotation of /trunk/test/vr-MIP.diderot
Annotation of /trunk/test/vr-MIP.diderot
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glk |
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// vr.diderot
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//
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// maximum intensity projection in Diderot
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//
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input string dataFile; // name of dataset
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input real stepSz; // size of steps
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input vec<3> light;
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input int wid = 640;
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input int ht = 480;
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image[3] img = load (dataFile);
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field#1[3] F = convolve (bspln3, img);
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actor RayCast (int row, int col)
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{
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vec<3> dir = (real(row), real(col), 0.0);
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vec<3> pos = (0.0, 0.0, 0.0);
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real t = 0.0;
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real maxval = -inf;
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int num = 0;
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update
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{
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vec<3> pt = pos + t*dir;
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real val = F@pt;
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maxval = max(val, maxval);
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if (t > 1)
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stabilize;
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t = t + stepSz;
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num = num + 1;
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}
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/* render: output maxval */
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}
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